Chaeles a



(No Model.)

G. A. MANN.

WIRE FENCE. No. 284,218. Patented Sept. 4, 1883.

filial Q I dmmbr 7/ W W. ,I/ I v MAMA 4 UNITED STATES- cHARLEs A. MANN, OF RUEEALo, NEW YORK.

W|RE FENCE.

SPECIFICATION forming part of Letters Patent No. 284,218, dated September 4, 1883.

. 7 Application filed November 28, 1882. (No model) by declare the following to be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention consists in certain improvements in that form of wire fence for which Letters Patent No. 266, 705 were granted to me on the 31st day of October, 1882. I have since found in practice that the wire which rested in the longitudinal groove in the flat metal strip, and which formed an important element in the invention covered by my above-named patent, can be dispensed with in some instances and under some conditions, while at other times itis indispensable.

My present invention therefore consists, essentially, of a fiat metal strip provided at suitable intervals with transverse bends or grooves for the reception of the barbs, such. transverse bends or grooves having a longi-' tudinal strengthening groove or rib struck up from the flat strip, all as will more fully hereinafter be described and claimed.

In the drawings, Figure l is a perspective view of a fiatmetal strip embodying my in-. vention. Fig. 2 is a view of a modified form, and Fig. 3 is a section taken in the line a: m of Fig. 2.

Referring to the drawings, a is the fiat metal This form of strip is, perhaps, the easiest to construct, although the groove or rib at only performs its function at the transverse groove or bendb, which function is to strengthen the groove or bend b, so that while it cannot be flattened out under strain it will yet yield sufficiently to compensate for any contraction which might take place in the'strip under extremely low temperatures.

In Fig. 2 I have shown a modified form of strip inwhich the strengthening rib or groove d is extended only a short distance beyond the transverse bend or groove 12 at each end thereof, the strip being perfectly fiat between the transverse bends or grooves.

In the drawings I have shown the barb c' as constructed, preferably, of wire, and my peculiar form of strip is particularly adapted to such wire barb, as clearly illustrated in Fig. 3, for the rib d in the bend 'b enlarges the crosssection of the strip at that point sufficiently to prevent the wire of the barb being bent too abruptly, and thereby broken.

I am aware that it is not novel, broadly, to construct a metal strip with transverse grooves or bends, and I do not therefore claim such construction; but

What I do claim as of my invention is 1. In a wire fence, a fiat metal strip provided at suitable intervals withtransverse bends or grooves for the reception of barbs, such transverse bends or grooves having strengthening grooves or ribs struck up from the fiat strip, as and for the purpose'stated.

2. In a wire fence, the combination, with a fiat metal strip provided at suitable intervals with transverse bends or grooves, such transverse bends or grooves being. provided with strengthening grooves or ribs, of suitable barbs secured in the transverse bends, substantially as shown and described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES A. MANN. Witnesses: I

W. T. MILLER, Orr ro HonDIcK- 

